Self-loading pistol of the kind having sliding barrels.



R. FROMMER. SELF LOADING PISTOL of THE KIND HAVING SLIDING BALRLLS,

APPLICATION FILED JULY.' l5, 1912.

Patented Oct. 1,1912.

hurra erases earner.

RUDOLF reconnus., or, nonsense AUSTRIA-HUNGARY.-

sELFfiioAnINe rrsroi; or TEE nimo Harms snrnme 5 King of Hungary, have invented certain new and useful Im roveine'nts in Self-Loading Pistols of the ind Having Sliding Barrels, of which the following is a specification.

This invention relates to self-loading pistols of the kind in which the barrel slides backward under the eiiect of the recoil and in which the breech block interlocks with the barrel. In weapons of the kind referred to it is necessary to provide springs for returning the barrel and breech-block respectively into the ring position after the recoil due to eachj discharge. It is generally desirable to make such weapons as short and light as possible, and in the construction of the saine heretofore employed a diiiiculty was experienced in combining these desirable features with springs of suilicient length for eecting the self-loading in an absolutely reliable manner. Y A

The object of the invention is to provide a construction which enables this difficulty to be overcome.

With this object in view, according to this invention, the two springs which return the barrel and the breech-block respectively into the tiring position are arranged above the barrel concentrically to one another in such a manner that each of the two springs may have a length approximately equal to that of the weapon. With this arrangement of the two springs the total length of the weapon can be made comparativelytshort while the springs can be made suhciently long to ulil their Jfunctions in 'a reliable manner. l

The invention is illustrated in the accompanying drawing, in whichy Figure 1 is alongitudinal sectional( view of amil-loading pistol of the above mentioned kind with closed breech-block;-Fig. 2 is asimilar sectional view with the breechblock open and showing the barrel in the position" would occupy just before reaching its filling position after the weapon has been discharged; Fig. 3 is a front view and Fig. 4: a back view of ,the weapon. i Thefweapon shown in the drawing is of tlnitv type in which under the action of the Specification of- Letters Patent. Applicants tied muy 15,1912. serial No. roasts..

Patented @,ct. 1,193.2.,

recoil the barrel 1 and the breech-bleck,2 run back rigidly locked together. At the end of the recoil the breech-block is Vheld :tast by'- a lever 3 engaging in a recess i3 1n` the breech-block, while the barrel is pressed forward by its spring Ll, thus separating the barrel from the breech-block. Having arrived at the end of its forward movement the barrel 1 depresses the lever 3 andreleases the breech-block 2 when'the latter is forced forward by its spring 5, and the barrel and breech-block again become interlocked.

According to this invention the tivo springs 4, 5 which force the parts home into firing position are arranged above the barrel in recesses 6 and 7 parallel to the barrel and concentric to one another as shown in E ig. 1. The spring e which forces the harrel 'forward is supported againsta shoulder 8 of the casing 9 and acts upon the barrel by means of a neck 10 which is secured upon the barrel by means of a nut 11. r)The barrel l. is prevented from rotating by means oiga nose 12 which engages in a corresponding A,

recess of the neck 10. A bolt 13 securesthe nut 11, for which purpose .the holt 13 yengages in a recess formed ina projection 111 ofthe nut l1 as shown in Fig. 3. The bolt 13 serves at the same time as asupport for the spring 1, while the neck' 10 insures the rcorrect guiding of the barrel in the casing 9.

Un the recoil due to the weapon losing .discharged the necklO abuts against a ringshaped projection 21 of the casing which limits the extent of the recoil of barrel.

The spring 5 which returns the breechblock into ring position is supportedZ thereby limits the extent of the recoil or" the breech-block. It will readily be seen that by this arrangement the rod 15 acts 'as a guide for the breech-block 2.

It is to be .understood that in Fig. 2 the breech-block is not shown in its rearmost po- 1 sition butslightly in front, of that position. The front end of the rod 15,is provided with a projection 2O to enable the said todito be readily connected with and disconnected from the project-ion 16 of the breech-block.r

Claim: A self-loading pistol having a. sliding barrel and a breech-block means to interlock thelatter with the barrel, a spring arranged above the barrel to return the same into thev ring position and a spring concentricaly a'rranged' toizheibarreI-spring to return the 10 Y `breech-block into the frlng position, essen- 

